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Proof step 34 from proof validrefs-del-junkrefs (previous step)

st[r0 -- i '] = refval(r), st[r0 -- _type] .type ≤ ty, is_array(str, r0, st), i < st[r0 -- _length] .intval, junkrefs(str, r ', st[r0 -- _type] .type .type, st -- r), 0 ≤ i, 0 < st[r0 -- _length] .intval ⊦ r0 = jvmref, r = r0, junkref(str, r0, st), ∃ i0. ¬ i0 < 0 ∧ ¬ st[r0 -- _length] .intval ≤ i0 ∧ is_referencevalue(st[r0 -- i0 ']) ∧ r = st[r0 -- i0 '] .refval ∧ validrefs(str, st[r0 -- i0 '] .refval ', st[r0 -- _type] .type .type, st)

User applied rule exists right

And obtained the following new goals

Proof step 33:
st[r0 -- i '] = refval(r), st[r0 -- _type] .type ≤ ty, is_array(str, r0, st), i < st[r0 -- _length] .intval, junkrefs(str, r ', st[r0 -- _type] .type .type, st -- r), 0 ≤ i, 0 < st[r0 -- _length] .intval ⊦ r0 = jvmref, r = r0, junkref(str, r0, st), ¬ i < 0 ∧ ¬ st[r0 -- _length] .intval ≤ i ∧ is_referencevalue(st[r0 -- i ']) ∧ r = st[r0 -- i '] .refval ∧ validrefs(str, st[r0 -- i '] .refval ', st[r0 -- _type] .type .type, st)

Rule argument

[EXRARG : pos: right 4, [extquanttermlist: (i)abort:F, discard:T, computed:T]]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (i)]]